Guide to application of the ATEX 2014/34/UE directive - BORDERLINE LIST – ATEX PRODUCTS

BORDERLINE LIST – ATEX PRODUCTS

The List has been confirmed during the ATEX Working Group meeting on 10 July 2013

 

Note that the list is not complete, it only clarifies some common inquires and provide examples of products within or outside the scope of the ATEX Directive 2014/34/EU. The List does not replace the vital risk assessment of each product and in addition ignition sources and explosion hazards related to the use of all the products shall also always be considered.

 

Products

Scope of 2014/34/EU

(El. = Electrical)

Examples of products

Comments

Equipment

Automatic lubrication systems

Yes (El.)

 

Yes: if it is a battery supplied system and has one or more electrical battery cells above the values specified in Simple Apparatus clause of EN 60079-11 and if the other criteria for simple apparatus are not met.

Clockworks

-

 

See 5.2.1 in ATEX Guidelines (“Simple” products).

Computers

Yes (El.)

 

 

Simple earthing clamps with and without cord

No

 

“Simple Earth Clamps” are clamps with a single earth connection. The clamp shall provide evidence that it is actually making contact. No own source of ignition, and for additional considerations, see note 2.

Complex earthing clamps with and without cord

Yes (El.)

 

The clamp shall provide evidence that it is actually making contact. Potential ignition sources cannot be excluded according to the ignition hazard assessment.

Electrical motors

Yes (El.)

 

El. equipment with potential ignition sources like heat and sparks of electrical origin (e.g. windings, connections) and mechanical origin (e.g. bearings).

Electrical pump with integrated electrical motor (e.g. canned or split tube motor pump, petrol pump/dispensers for petrol filling)

Yes (El.)

 

El. equipment with potential ignition sources like heat and sparks of electrical origin (e.g. motor circuit) and mechanical origin (e.g. pump impeller).

Static discharge may occur while pumping/filling in progress.

Electrical fan with integrated electrical motor (e.g. electrical axial fan)

Yes (El.)

 

El. equipment with potential ignition sources like heat and sparks of electrical origin (e.g. motor circuit) and mechanical origin (e.g. fan blades).

Non-electrical fan with integrated air motor (e.g. non-electrical axial fan)

Yes (Non-el.)

 

Non-el. equipment with potential ignition sources like frictional heat and sparks of mechanical origin (e.g. bearings, fan blades).

Hand operated valves

No

 

See 5.2.1 in ATEX Guidelines (“Simple” products).

Heating cables

Yes (El.)

 

Heating cables transform electricity into heat while cables “only” transports electricity. Heating cables may also be components, e.g. heating cables for controlled design applications as part of trace heating systems.

Mechanical brakes

Yes (Non-el.)

 

Non-el. equipment with potential ignition sources like frictional heat of mechanical origin.

Mechanical gears

Yes (Non-el.)

 

Non-el. equipment with potential ignition sources like frictional heat and sparks of mechanical origin.

Phones and similar equipment e.g. walkie-talkies, head phones etc.

Yes (El.)

 

El. equipment with potential ignition sources like heat and sparks of electrical origin.

Refrigerators and storage cabinets for volatile substances

No (but see note 1) (El.)

 

Refrigerators and cabinets can be used for the storage of volatile substances and may therefore contain a potentially explosive atmosphere. A refrigerator is an item of electrical equipment and may also contain a light etc. Some cabinets contain potential ignition sources such as a fan with an electric motor. Usually, the product itself is not intended to be operated in a potentially explosive atmosphere (see Note a)) and would therefore not be within the scope of the ATEX Directive. It would fall under the Low Voltage Directive. LVD requires the manufacturer to address hazards that might arise in foreseeable reasonable use (or foreseeable misuse – see Note b)) from potential ignition sources within the product. ATEX certified parts might be used within the potentially explosive atmosphere or ignition sources may be excluded altogether.

Note a): the possibility of an explosive atmosphere occurring around the refrigerator or cabinet should be assessed by the manufacturer during his risk assessment (in discussion with the user, if possible) taking into account the flashpoint of the liquids, the likely frequency and duration of release, release rate, concentration, velocity, ventilation and other factors affecting the likelihood of an explosive atmosphere being present during the intended use. If a potentially explosive atmosphere is likely to form around the refrigerator or cabinet as a result of vapours from inside exiting and collecting around the unit when the door is opened, it would be considered to be operating in a potentially explosive atmosphere and covered by Directive 2014/34/EU, not LVD. If the manufacturer establishes that an explosive atmosphere is not expected to be present in quantities such as to require special precautions for the construction or use of the refrigerator or cabinet under the conditions of the intended use, the area would be considered as non-hazardous and the product would be covered by LVD, not Directive 2014/34/EU. In all cases, the instructions for use should inform the user about the preconditions for the safe use of his product. The end-user has to consider the instructions for use and their own responsibilities under the 99/92/EC ATEX “workplace” Directive.

Note b): it is reasonably foreseeable that the refrigerator or cabinet could be used for the storage of open containers of volatile substances. This is misuse and could lead to dangerous situations. The instructions for use should include warnings against this.

Plugs and socket outlets

Yes (El.)

 

El. equipment with potential ignition sources like sparks of electrical origin (e.g. when connected or disconnected).

Note that all countries have special requirements on plugs and socket outlets for domestic use.

Rotary valve

Yes (Non-el.)

 

Only intended to be used as dosing equipment and NOT to stop the propagation of an explosion as explosion isolation system. Has to be explosion protected with respects to its ignition sources.

Switches for fixed electrical installations

Yes (El.)

 

El. equipment with potential ignition sources like sparks of electrical origin (e.g. when switched on or off).

Torch

Yes (El.)

 

El. equipment with potential ignition sources like heat and sparks of electrical origin (e.g. sparks from a switch or heat in a bulb or battery).

Protective Systems

Fire extinguisher

No

 

Intended to be used after an explosion.

Flame arrestors

Yes

 

Intended to be used to stop the propagation of an explosion. Flame arrestors are used for example on vapour recovery lines on petrol stations to prevent the propagation of an explosion to the underground storage tank or the vehicle.

PT 100 sensor

No / Yes

 

No when used in an intrinsic safe system together with e.g. a barrier.

In all other situations is it to be decided on a case by case assessment.

Rotary valve

Yes

 

Intended to be used not only as dosing equipment but also as explosion isolation system to stop the propagation of an explosion. Has to be explosion protected with respects to its ignition sources and shall fulfil the requirements for protective systems with respect to propagation of an explosion.

Vent panels (for explosion pressure relief)

Yes

 

Intended to be used to limit the effects of an explosion.

Explosion suppression systems including initiators devices i.e. suppression systems (triggering)

Yes (El.)

 

Within 2014/34/EU, Article 1.1, with respect to functional and reliability requirements according to the ESHR, clauses 1.5. and 1.6.

Initiators can be certified separately as electrical equipment.

 

Ex Components

Empty enclosures

Yes (El.)

 

Intended to be used for electrical equipment with potential ignition sources.

Sight glasses

No

 

No own source of ignition.

However, sight glasses may form part of the enclosure of Ex equipment and be required to fulfil relevant requirements such as for a window in Ex ‘d’ equipment or impact resistance in Ex ‘o’ and Ex ‘k’ equipment.

Spark arrestor

Yes

 

Intended to prevent an explosion; not to limit it. It is an ATEX component if intended to be built into ATEX equipment or protective systems.

Magnetic catches for doors etc.

No

 

No autonomous function; not essential to safe functioning of ATEX equipment or protective system.

Safety, Controlling or Regulating devices

Devices controlling the regular safety limits of an industrial process handling flammables, like pressure, level and temperature transmitters

No

 

Shall be protected as potential ignition sources themselves if placed inside hazards areas, but safety devices with respect to risks other than ignition hazards + monitoring devices providing only an alarm signal, but without direct control function, are outside scope of the directive (with respect to reliability and functional requirements according to the ESHR, clauses 1.5. and 1.6.).

Overload or temperature protective devices, inhibiting ignition sources from becoming active (e.g. current-dependent device for Exe motor)

Yes (El.)

 

Within 2014/34/EU, Article 1.1., with respect to functional and reliability requirements according to the ESHR, clauses 1.5. and 1.6.

Other products

Cables

No

 

No autonomous function; not essential to safe functioning of ATEX equipment or protective system.

Cable ladder and chain/handler systems

No

 

No autonomous function; not essential to safe functioning of ATEX equipment or protective system. No own source of ignition, and for additional considerations, see Note 2.

 

Conduits/pipes: e.g. Fume extraction arms and conduits for electrical installations (except for conduits intended to be used between the flameproof enclosures and the conduit sealing devices)

No

 

No autonomous function; not essential to safe functioning of ATEX equipment or protective system.

Cable lugs/shoes with and without cord

No

 

No autonomous function; not essential to safe functioning of ATEX equipment or protective system.

Electro Static Discharge (ESD) -protections: e.g. wrestles, shoes, standing mats, antistatic bags

No

 

No autonomous function; not essential to safe functioning of ATEX equipment or protective system.

Doors

No

 

No: none automatic doors are considered as a part of the fixed walls and are not operated in the presence of explosive atmospheres. For additional considerations, see Note 2.

Ladders, irrespective of the material

No

 

No own source of ignition.

Paint

No

 

No own source of ignition.

Tank

No

 

No own source of ignition.

Tools: e.g. hammers, tongs

No

 

No own source of ignition.

 

 

 

Note 1: Additional information can be obtained in the ATEX Guidelines to Directive 2014/34/EU, but also in the Non-binding Guide to Directive 1999/92/EC.

 

Note 2: Equipment, protective systems, Ex components, safety, controlling, regulating devices and/or other products indicated as not falling within the scope of the ATEX Directive 2014/34/EU, ignition sources and explosion hazards related to the use shall be considered. Friction impacts and abrasion processes involving rust and light metals (e.g. aluminium and magnesium) and their alloys may initiate an aluminothermic (thermite) reaction, which can give rise to particularly incendive sparking.

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